CN113798606A - Method for machining internal thread of thin-wall cylindrical part - Google Patents
Method for machining internal thread of thin-wall cylindrical part Download PDFInfo
- Publication number
- CN113798606A CN113798606A CN202111144006.2A CN202111144006A CN113798606A CN 113798606 A CN113798606 A CN 113798606A CN 202111144006 A CN202111144006 A CN 202111144006A CN 113798606 A CN113798606 A CN 113798606A
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- Prior art keywords
- thin
- shaping
- cylindrical part
- wall
- product
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- 238000003754 machining Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title abstract description 13
- 238000007493 shaping process Methods 0.000 claims abstract description 47
- 238000003672 processing method Methods 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- -1 ferrous metals Chemical class 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/44—Equipment or accessories specially designed for machines or devices for thread cutting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
Abstract
The invention discloses a method for processing internal threads of a thin-wall cylindrical part, which comprises the following steps: sleeving a shaping device on the outer wall of a thread machining end of a thin-walled cylindrical part product, wherein the shaping device comprises a shaping ring and a shaping bolt; then clamping the rear end of the thin-wall cylindrical part product through a soft jaw chuck, wherein the bracket is arranged on the outer side of a shaping ring of the shaping device and used for supporting the front end of the thin-wall cylindrical part product; adjusting the screwing length of each shaping bolt in the shaping device, and shaping the front end of the thin-walled cylindrical product to control the wall thickness difference of the front end of the thin-walled cylindrical product within 0.1 MM; and finally, machining the internal thread at the front end of the thin-wall cylindrical part product by using a cutting tool. According to the processing method, the front end of the thin-wall cylindrical part product is shaped through the shaping device, the technical difficulty of processing threads on the inner wall of the thin-wall cylindrical part is solved, and the processed product has high thread precision.
Description
Technical Field
The invention relates to a method for processing an internal thread of a thin-wall cylindrical part, and belongs to the technical field of rocket projectile assembly.
Background
Conventionally, a thin-walled member has been widely used in various industrial fields because of its characteristics of light weight, compact structure, and the like. However, the deformation problem of thin-wall parts is difficult to solve all the time, and particularly non-ferrous metals such as aluminum and magnesium alloy are easy to deform in the processing and heat treatment processes, so that the quality of parts is seriously influenced.
At present, the traditional method for solving the deformation is mainly grasped from each link of a heat treatment and machining process, the deformation is reduced to the maximum extent by a reasonable machining method, but the deformation is only reduced, and the deformation cannot be finally removed, and particularly when threads are machined on the inner wall of a thin-wall cylindrical part, the threads of the machined product are not tight due to part deformation, and the threads are chattered, so that the process requirements are difficult to meet.
Disclosure of Invention
The invention aims to solve the problems that when threads are machined on the inner wall of a thin-wall cylindrical part by the traditional process, the threads are not tight due to part deformation, the threads are chattered, and the like, and provides a machining method of thin-wall cylindrical part internal threads.
The purpose of the invention is realized by the following technical scheme:
the invention discloses a method for processing internal threads of a thin-wall cylindrical part, which comprises the following specific processing steps of:
1) the shaping device is sleeved on the outer wall of the thread machining end of the thin-walled cylindrical part product and comprises a shaping ring and shaping bolts, the shaping ring is a ring-shaped part with the inner diameter matched with the outer diameter of the thin-walled cylindrical part product, a group of threaded holes which are uniformly distributed on the circumference and are provided with radial holes are formed in the side wall of the shaping ring, and each threaded hole is connected with a shaping bolt;
2) clamping the rear end of a thin-walled cylindrical product through a soft jaw chuck, wherein the bracket is arranged on the outer side of a shaping ring of the shaping device and used for supporting the front end of the thin-walled cylindrical product;
3) adjusting the screwing length of each shaping bolt in the shaping device, and shaping the front end of the thin-walled cylindrical product to control the wall thickness difference of the front end of the thin-walled cylindrical product within 0.1 MM;
4) and then machining the internal thread at the front end of the thin-wall cylindrical part product by using a cutting tool.
Advantageous effects
The processing method provided by the invention is simple to operate and low in processing cost, the front end of the thin-wall cylindrical part product is shaped by the shaping device, the technical difficulty of processing threads on the inner wall of the thin-wall cylindrical part is solved, the processed product has high thread precision, the size meets the process requirement, and the processing method has wide application value.
Drawings
FIG. 1 is a schematic view of the clamping of the processing method of the present invention;
in the figure, 1-soft jaw chuck; 2-thin-walled cylindrical product; 3-a bracket; 4-shaping the bolt; 5-shaping ring 5.
Detailed Description
The invention is further described with reference to the following figures and examples.
Examples
The invention discloses a method for processing internal threads of a thin-wall cylindrical part, which comprises the following specific processing steps of:
1) the outer wall of the thread machining end of the thin-walled cylindrical part product 2 is sleeved with a shaping device, the shaping device comprises a shaping ring 5 and a shaping bolt, the shaping ring 5 is an annular part with the inner diameter matched with the outer diameter of the thin-walled cylindrical part product 2, the side wall of the shaping ring 5 is provided with a group of threaded holes which are uniformly distributed on the circumference and are radially provided with holes, and each threaded hole is internally connected with the shaping bolt 4;
2) the rear end of a thin-wall cylindrical part product 2 is clamped through a soft jaw chuck 1, the bracket 3 is installed on the outer side of a shaping ring 5 of the shaping device to support the front end of the thin-wall cylindrical part product 2, and the clamping structure is shown in figure 1;
3) adjusting the screwing length of each shaping bolt 4 in the shaping device, shaping the front end of the thin-walled cylindrical product 2, and controlling the wall thickness difference of the front end of the thin-walled cylindrical product 2 within 0.1 MM;
4) and then the internal thread at the front end of the thin-wall cylindrical part product 2 is processed by a cutting tool.
Claims (1)
1. A processing method of thin-wall cylindrical part internal threads is characterized by comprising the following specific processing steps:
1) the shaping device is sleeved on the outer wall of the thread machining end of the thin-walled cylindrical part product and comprises a shaping ring and shaping bolts, the shaping ring is a ring-shaped part with the inner diameter matched with the outer diameter of the thin-walled cylindrical part product, a group of threaded holes which are uniformly distributed on the circumference and are provided with radial holes are formed in the side wall of the shaping ring, and each threaded hole is connected with a shaping bolt;
2) clamping the rear end of a thin-walled cylindrical product through a soft jaw chuck, wherein the bracket is arranged on the outer side of a shaping ring of the shaping device and used for supporting the front end of the thin-walled cylindrical product;
3) adjusting the screwing length of each shaping bolt in the shaping device, and shaping the front end of the thin-walled cylindrical product to control the wall thickness difference of the front end of the thin-walled cylindrical product within 0.1 MM;
4) and then machining the internal thread at the front end of the thin-wall cylindrical part product by using a cutting tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111144006.2A CN113798606A (en) | 2021-09-28 | 2021-09-28 | Method for machining internal thread of thin-wall cylindrical part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111144006.2A CN113798606A (en) | 2021-09-28 | 2021-09-28 | Method for machining internal thread of thin-wall cylindrical part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113798606A true CN113798606A (en) | 2021-12-17 |
Family
ID=78938919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111144006.2A Pending CN113798606A (en) | 2021-09-28 | 2021-09-28 | Method for machining internal thread of thin-wall cylindrical part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113798606A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115229435A (en) * | 2022-06-20 | 2022-10-25 | 中国航发哈尔滨东安发动机有限公司 | Machining method for ensuring chromium plating outer diameter of thin-wall slender guide cylinder |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1757391A1 (en) * | 2005-08-23 | 2007-02-28 | Schunk GmbH & Co. KG Spann- und Greiftechnik | Expansion chucking device |
| JP2008213080A (en) * | 2007-03-02 | 2008-09-18 | Denso Corp | Thin-walled cylinder retaining tool and machining method for thin-walled cylinder |
| CN202639926U (en) * | 2012-07-24 | 2013-01-02 | 中国核动力研究设计院 | Clamping positioning device based on inner hole processing of thin-wall pipe fitting |
| CN204035722U (en) * | 2014-09-09 | 2014-12-24 | 安阳宏源铁路器材有限公司 | A kind of pipe fitting internal thread numerically controlled processing equipment |
| CN205166109U (en) * | 2015-12-03 | 2016-04-20 | 济南章力机械有限公司 | Inside pipe wall splashproof sediment device and pipeline pass through wire cut electrical discharge machining mutually |
| CN105729199A (en) * | 2016-04-20 | 2016-07-06 | 西安鑫垚陶瓷复合材料有限公司 | Internal curved surface machining tooling of ceramic matrix composite revolution solid |
| CN205414680U (en) * | 2015-12-16 | 2016-08-03 | 中国人民解放军第五七一九工厂 | A auxiliary fixtures for repairing thin wall loop forming element |
| CN106670834A (en) * | 2016-11-30 | 2017-05-17 | 中国电子科技集团公司第四十八研究所 | Shaft/cylinder part supporting device for lathe machining |
| CN207642694U (en) * | 2017-11-27 | 2018-07-24 | 江苏金通灵流体机械科技股份有限公司 | A kind of tooling of processing thin-walled ring |
| CN207668640U (en) * | 2017-12-01 | 2018-07-31 | 九江精博精密科技有限公司 | It is a kind of can tapping lathe |
| CN208427803U (en) * | 2018-06-29 | 2019-01-25 | 大连万锋模具配件有限公司 | A kind of both ends female type guiding axis internal thread machining equipment |
| CN209578173U (en) * | 2019-02-14 | 2019-11-05 | 上海镜海光学科技有限公司 | A kind of pipeline internal thread machining lathe |
| CN110666201A (en) * | 2019-10-15 | 2020-01-10 | 济南隆超石油机械锻造有限公司 | Processing thin wall cover hole, excircle are with kaifeng sleeve |
| CN111673149A (en) * | 2020-05-22 | 2020-09-18 | 成都飞机工业（集团）有限责任公司 | Method for machining high-precision inner circular hole of thin-wall special pipe |
-
2021
- 2021-09-28 CN CN202111144006.2A patent/CN113798606A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1757391A1 (en) * | 2005-08-23 | 2007-02-28 | Schunk GmbH & Co. KG Spann- und Greiftechnik | Expansion chucking device |
| JP2008213080A (en) * | 2007-03-02 | 2008-09-18 | Denso Corp | Thin-walled cylinder retaining tool and machining method for thin-walled cylinder |
| CN202639926U (en) * | 2012-07-24 | 2013-01-02 | 中国核动力研究设计院 | Clamping positioning device based on inner hole processing of thin-wall pipe fitting |
| CN204035722U (en) * | 2014-09-09 | 2014-12-24 | 安阳宏源铁路器材有限公司 | A kind of pipe fitting internal thread numerically controlled processing equipment |
| CN205166109U (en) * | 2015-12-03 | 2016-04-20 | 济南章力机械有限公司 | Inside pipe wall splashproof sediment device and pipeline pass through wire cut electrical discharge machining mutually |
| CN205414680U (en) * | 2015-12-16 | 2016-08-03 | 中国人民解放军第五七一九工厂 | A auxiliary fixtures for repairing thin wall loop forming element |
| CN105729199A (en) * | 2016-04-20 | 2016-07-06 | 西安鑫垚陶瓷复合材料有限公司 | Internal curved surface machining tooling of ceramic matrix composite revolution solid |
| CN106670834A (en) * | 2016-11-30 | 2017-05-17 | 中国电子科技集团公司第四十八研究所 | Shaft/cylinder part supporting device for lathe machining |
| CN207642694U (en) * | 2017-11-27 | 2018-07-24 | 江苏金通灵流体机械科技股份有限公司 | A kind of tooling of processing thin-walled ring |
| CN207668640U (en) * | 2017-12-01 | 2018-07-31 | 九江精博精密科技有限公司 | It is a kind of can tapping lathe |
| CN208427803U (en) * | 2018-06-29 | 2019-01-25 | 大连万锋模具配件有限公司 | A kind of both ends female type guiding axis internal thread machining equipment |
| CN209578173U (en) * | 2019-02-14 | 2019-11-05 | 上海镜海光学科技有限公司 | A kind of pipeline internal thread machining lathe |
| CN110666201A (en) * | 2019-10-15 | 2020-01-10 | 济南隆超石油机械锻造有限公司 | Processing thin wall cover hole, excircle are with kaifeng sleeve |
| CN111673149A (en) * | 2020-05-22 | 2020-09-18 | 成都飞机工业（集团）有限责任公司 | Method for machining high-precision inner circular hole of thin-wall special pipe |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115229435A (en) * | 2022-06-20 | 2022-10-25 | 中国航发哈尔滨东安发动机有限公司 | Machining method for ensuring chromium plating outer diameter of thin-wall slender guide cylinder |
| CN115229435B (en) * | 2022-06-20 | 2023-10-24 | 中国航发哈尔滨东安发动机有限公司 | Machining method for guaranteeing chromium plating outer diameter size of thin-wall slender guide cylinder |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20211217 |